Try cock



IIIIIII MM Mm May 10.1927. y

` W. E. WILLIAMS TRY COCK Filed.0ct. 27. 1926 Patented May l0, 1927.

UNITED STATES WILLIAM E. WILLIAMS, OFBROOKLYN, NEW YORK.

TRY COCK.

Application led October 27, 1926. Serial No. 144,569.

l" lack of suitable means ou ordinary holler try coole-i, when they are inanipulatcifl, the valve member which controls the inlet and outlet of the cock might be accidentally turned too far, so as to be unscrewed out V' of the casing, or the same result might he caused when the valve. il'ielnhei.' works loose under action of pressure causing trouhle and injuries 'from scalding.

Therefore, it is the principal object ot the present invention to combine means with the appurtenances of a cock oiv the indicated i character preventing iuiintentional or accidental separation ot the valve control meinher and parts connected thereto.

'lhe nature of the invention and its distinguishing features and advantages will appear when the following speciication is read in connection with the accompanying drawing, in which:

Figure 1 is a side elevation of a try cock embodying the present invention.

Figure 2 is a `central vertical sectional view through the try cock.

Referring now more particularly to the i views of the drawing, it will be apparent that, the try cock essentially includes a casing 10 having a threaded end 11 for elfecting the connection of the casing, an inlet passage 12 in communication with a bore 13, and an outlet 14 also in communication with the bore 13. At the point where the inlet passage 12 communicates with the bore 13, there is a seat 15. The inlet passage 12 and the outlet 14 is controlled by a valve member 16 having conical ends 17 and 18. The valve member 16 is arranged between a stem 19 and a stem 20. The stem 19 is cross-sectionally triangular and extends in the inlet passage 12, it allows steam to pass upwardly through the inlet passage 12, and it acts as a guide. '.lhe stem 20 is cross-sectionally round and extends in a central bore in an adjustable controlling sleeve 21. The bore 13 hereinbefore referred to, is threaded as at 22 for a portion of its length, whereas, the sleeve 2l. has external threads complemental to the threads ol' the bore 22 by Vvirtue ol. which the sleeve 2l, is adjustably associated with the casing 10. The upper end oli the sleeve 2l. is provided with a handle 23 for numipulating the sleeve 2l.. When the starve 2l is in the position shown in li`igure 2, the valve member 16 will be held against movement with its conical portion 17 on the seat 15, and its conical portion 18 against a seat 24; on the lower end ot" the sleeve 2l. Yln this position of the valve member 16, the :inlet passage 12 will. be closed thus preventingI escape ot water through the outlet 14.

In order to prevent the sleeve 21, and therefore the valve member with its stems 1S) and. 2() from working out of the casing 10 there is provided a suitable means, in the present instance, consisting of an annular member 25 formed integral with the casing l() by virtue o dian'ietrically opposed members 26. The sleeve 21 is adapted to be extended through the opening 27 in the member 25. A collar 28 constituting a stop is threaded on the sleeve 21, and said collar is held in place by a set screw 29. The set screw 29 threads in a bore in the collar 28 and the inner end enters a recess l0 in the sleeve 21 to thus securely hold the collar 28 in place on the\sleeve 21. It will now be apparent that when the sleeve 2l is turned so as to move upwardly, there comes a time when the collar 28 Will engage the annular member 25. The sleeve 21 is thus prevented from being separated from the casing 10. By manipulating the handle 23 the sleeve 2l may be moved upwardly to permit the valve member 16 to be elevated under the action of pressure entering the inlet passage 12, and as a consequence any water present in the boiler to which the cock is connected will pass through the outlet 14. The valve member 16 may then be turned to the closed position. These opening and closing operations may be carried out frequently Without any danger of Separation of the controlling parts of the cock.

I claim:

A try cock including a casing having an inlet, an outlet and a seat between the inlet and outlet; a stem, u vulve member on the stem, a sleeve surrounding the stem and nd ]ustably assoclated wllh said easlng, Saud sleeve havlng a seat, Saud vulve nlen'lber adapted to be moved lntc and eui ef engagement wlth Saud seats, und means luntlng the adjustment of Saud sleeve.

WILLIAM E. lVILLIAMS. 

